EMT Practice Test

1. Question Content...

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Question1: Which of the following is the purpose of configuring IS-IS fragmentation on an IS-IS device?

Question2: In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about symmetric IRB forwarding are correct?

Question3: Huawei Open Programmability System (OPS) uses HTTP methods to access managed objects to manage network devices. HTTP is the most widely used network transmission protocol on the Internet.
By default, which TCP port number is used?

Question4: In the SD-WAN Solution, which routing protocols can be used by LAN-side devices to connect to a Layer 3 network?

Question5: Huawei CloudCampus Solution has multiple application scenarios, and iMaster NCE-Campus provides different APIs for each application scenario. Match the following application scenarios with the open APIs provided by iMaster NCE-Campus.

Question6: MPLS supports forwarding equivalence class (FEC). Which of the following cannot be used as an FEC allocation standard?

Question7: On a CloudCampus virtualized campus network, virtual networks are defined based on services. Each virtual network corresponds to a service, and isolation needs to be manually configured between virtual networks.

Question8: In OSPFv3, which of the following types of LSAs can be flooded in the entire AS?

Question9: gRPC (Google Remote Procedure Call) is a language-neutral, platform-neutral, and open-source remote RPC system that supports unary RPCs and streaming RPCs.
Which of the following service methods are NOT supported by gRPC?

Question10: Which of the following statements about VXLAN principles is incorrect?

Question11: In the following figure, OSPF is enabled on all router interfaces. The IP addresses marked in the figure belong to Loopback0 of the routers.

The Loopback0 addresses of R1 and R2 are advertised in Area 1, the Loopback0 address of R4 is advertised in Area 0, and the Loopback0 addresses of R3 and R5 are advertised in Area 2. Given this, which of the following IP addresses can ping each other?

Question12: Collecting information before a cutover helps you determine whether services are normal before and after the cutover.

Question13: In addition to indicating priority, the DSCP value can also indicate the drop probability. Which of the following DSCP values is set with the highest drop probability?

Question14: Which MPLS label will be used by PE2 for forwarding traffic to 10.0.1.1 based on the following SR- MPLS database?
Given Data (LSDB Information):
* Prefix-SID: 100
* SRGB Base: 40000

Question15: Which of the following functions can be provided by iMaster NCE-Campus when it functions as a relay agent for authentication?

Question16: In the following figure, all routers are running OSPF. Given this, which of the following statements is correct?

Question17: In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about symmetric IRB forwarding are correct?

Question18: Which of the following inter-AS MPLS L3VPN solutions needs ASBRs to transmit VPNv4 routes?

Question19: In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about the functions of BGP EVPN Type 3 routes is incorrect?

Question20: Which of the following are carried in the HTTP/1.1 response header?

Question21: An SRv6 Policy can be either statically configured on a device or dynamically generated by the controller and then delivered to the device.

Question22: To allow only authorized users (users who obtain IP addresses through authorized DHCP servers or use specified static IP addresses) to access the network shown in the figure, which of the following solutions can be used?

Question23: Which of the following roles is NOT a core role in Huawei's Free Mobility solution?

Question24: Prefix segments and adjacency segments are globally visible and unique.

Question25: Refer to the figure.

Which of the following steps are mandatory to enable 802.1X authentication on GE0/0/2 and GE0/0/3 of SW3 and configure a RADIUS server to authenticate and deliver network access rights to users?

Question26: Which of the following items are included in static information collection and analysis?

Question27: Portal authentication is recommended for scenarios with high mobility and numerous terminal types, such as shopping malls and supermarkets. MAC address authentication is recommended for dumb terminals that do not support Portal authentication, such as printers, fax machines, and IP phones.

Question28: Which of the following are carried in an HTTP/1.1 response?

Question29: In the small and midsize campus network design based on the Huawei CloudCampus Solution, when over
100 branches need to communicate with each other, which of the following interconnection networking models is recommended?

Question30: Which of the following types of EVPN routes does not carry MPLS labels?

Question31: In Huawei Open Programmability System (OPS), /ifm/interfaces/interface is the URL used to identify a device's managed object.

Question32: Which of the following statements is incorrect about the user authentication points on the network?

Question33: In DU label advertisement mode, if the liberal label retention mode is used, the device reserves labels received from all the LDP peers regardless of whether the LDP peer is the optimal next hop for reaching the destination network.

Question34: The display current-configuration command displays the running configurations in memory.

Question35: Which of the following commands is used to adjust the cost of an IS-IS interface?

Question36: Man-in-the-middle attacks (MITM) or IP/MAC Spoofing attacks are common on intranets and can cause information leakage.
Which configuration method can prevent these attacks?

Question37:
Refer to the configuration in the figure. Which queue on R2 do packets of PC1 enter by default?

Question38: In the CloudCampus public cloud scenario, if deployment through the Huawei Registration Query Center is used, you do not need to configure DHCP Option 148 on the DHCP server of the campus network.

Question39: Network administrator A wants to use an IP prefix-list to match specific routes. Which of the following routes can be matched by the IP prefix-list shown in this figure?
ip ip-prefix TEST permit 10.0.0.0 24 less-equal 30

Question40: OSPFv2 is an IGP running on IPv4 networks, whereas OSPFv3 is an IGP running on IPv6 networks. OSPFv2 and OSPFv3 have similar LSA types, but their LSA functions are slightly different. Which of the following is not an OSPFv3 LSA type?

Question41: As shown in the figure, PE1 establishes an EVPN peer relationship with each of PE2 and PE3. When the network is initialized, CE1 sends an ARP request packet.

Which of the following statements are correct about how a PE processes the packet?

Question42: A network administrator runs the display telemetry subscription command on a device to check telemetry subscription information. The command output is as follows:
[~CE]display telemetry subscription
Sub-name : Sub1
Sensor group:
Sensor-name Sample-interval(ms) State
Sensor1 1000 RESOLVED
Destination group:
Dest-name Dest-IP Dest-port State Vpn-name Protocol
Dest1 192.168.56.1 20000 RESOLVED - GRPC
Sub-state : PASSIVE
Total subscription number is : 1
Which of the following statements is incorrect?

Question43: Exhibit:

A loop occurs because Spanning Tree Protocol (STP) is not enabled on the network. Which of the following symptoms may occur?

Question44: When a client invokes the iMaster NCE-Campus RESTful API, it sends an HTTP request. The server then returns the status code 401.
Which of the following errors has occurred?

Question45: What can be determined from the following figure?
<R1> display ipv6 routing-table protocol isis
Public Routing Table : ISIS
Summary Count: 6
ISIS Routing Table's Status : < Active >
Summary Count: 6
Destination : 3000:FDEA::4
NextHop : FE80::2E0:FCFF:FE98:2577
Cost : 20
Interface : GigabitEthernet0/0/1
PrefixLength : 128
Preference : 15
Protocol : ISIS-L2
Flags : D

Question46: An HTTP request line consists of three fields. Select the fields to form a complete HTTP request message.

Question47: To deploy a virtual campus network using iMaster NCE-Campus, the following steps are performed.
From top to bottom, sort the steps in the order in which they occur during network deployment and management.

Question48: IPsec uses an asymmetric encryption algorithm to encrypt the symmetric algorithm key, which it uses to encrypt/decrypt data, ensuring security and performance.

Question49: Congestion management technology can be used to discard data packets in the buffer queue to prevent the buffer queue from being exhausted.

Question50: What can be determined from the following IS-IS peer output?
Peer information for ISIS(1):
* Peer System ID: ee8c.a0c2.baf3
* Interface: GE0/0/0
* State: Up
* HoldTime: 7s
* Type: L1
* PRI: 64
* MT IDs supported: 0(UP), 2(UP)
* Local MT IDs: 0, 2
* Area Address(es): 49.0022
* Peer IP Address(es): 10.1.34.1
* Peer IPv6 Address(es): FE80::2E0:FCFF:FE98:2576

Question51: Which of the following intelligent traffic steering policies can be used to fully utilize link bandwidth and implement link bandwidth-based load balancing on an enterprise network with multiple links?

Question52:
As shown in the following figure, an engineer tests network interconnection between two branches. To implement network interconnection, OSPF is deployed on R1, R2, and R3 of branch 1, and IS-IS is deployed on R2, R3, and R4 of branch 2. Which of the following operations needs to be performed to allow R1 to access R4's loopback interface address?

Question53: On a router, SRv6 is enabled, and the configurations shown below are performed. Which of the following statements about the configurations are correct?
[Router-segment-routing-ipv6] locator srv6_locator1 ipv6-prefix 2001:DB8:ABCD::/64 static 32

Question54: As shown in the figure, what is known about the default routes on R4?
Routing Table on R4:
<R4>display ip routing-table protocol isis
Destination/Mask Proto Pre Cost Flags NextHop Interface
0.0.0.0/0 ISIS-L1 15 10 D 10.1.24.1 GigabitEthernet0/0/1
ISIS-L1 15 10 D 10.1.34.1 GigabitEthernet0/0/0
172.16.1.2/32 ISIS-L1 15 10 D 10.1.24.1 GigabitEthernet0/0/1
172.16.1.3/32 ISIS-L1 15 10 D 10.1.34.1 GigabitEthernet0/0/0

Question55: Which of the following statements about BGP EVPN principles are correct in a scenario where a VXLAN tunnel is dynamically established through BGP EVPN?

Question56: BFD can implement millisecond-level link status detection.

Question57: Which of the following statements regarding OSPF neighbor relationship faults is incorrect?

Question58: After the reset isis all command is run, the specified IS-IS process is reset, and all involved IS-IS neighbor relationships are re-established; however, IS-IS statistics are not cleared.

Question59: In a VXLAN scenario, which of the following features can be enabled to reduce ARP packet flooding between VTEPs?

Question60: Which of the following is the drop probability of packets exceeding the upper threshold in WRED?

Question61: IPsec SAs can be established in either manual mode or IKE auto-negotiation mode. Which of the following statements about the two modes is incorrect?

Question62: Exhibit:

The following figure shows the inter-AS MPLS VPN Option C (solution 2). RRs are deployed, and no traffic passes through the RRs during forwarding. If a data packet sent from PE2 to 192.168.1.1 carries two labels, which of the following statements about the two labels are correct?

Question63: An engineer often remotely logs in to the device to check the device status. The engineer can use the Python Paramiko and telnetlib libraries to implement automatic remote login through Python scripts.
The remote login implemented using telnetlib is more secure.

Question64: In the firewall hot standby scenario, which of the following status information can be backed up between the active and standby firewalls?

Question65: In the Huawei SD-WAN Solution, the topologies of different VNs must be the same.

Question66: The ingress VTEP performs both Layer 2 and Layer 3 table lookup for packet forwarding. The forwarding mode is _____ IRB forwarding. (Capitalize the first letter.)

Question67: Huawei Open Programmability System (OPS) uses standard HTTP methods to access managed objects and manage network devices.
Which of the following HTTP methods is used to configure the value of a network device's managed object?

Question68: In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following command needs to be run on the VBDIF interface to enable the VTEP peer to generate BGP EVPN Type 2 routes based on ARP information of the local terminal?

Question69: Which of the following statements is incorrect about intranet security design for a large or medium-sized virtualized campus network?

Question70: The figure shows a packet that contains three label headers. Select the values (in decimal notation) of the X, Y, and Z fields, respectively.

Question71: BGP Link State (BGP-LS) introduces a new NLRI into BGP. The NLRI carries link, node, topology prefix, and other information, and is also referred to as the link state NLRI.

Question72: Flavors are additional behaviors defined to enhance the End series instructions in SRv6. Which of the following End instructions can the PSP flavor be attached to?

Question73: In the firewall hot standby scenario, in which of the following conditions will the local device proactively send VGMP packets?

Question74: OSPF is a mature protocol and is unlikely to have route computation errors in a regular networking environment under correct configurations. Which of the following statements are correct about the possible causes preventing an OSPF neighbor relationship from entering Full state?

Question75: When an SSH client logs in to an SSH server that is configured only with username and password authentication in SSH mode, the key exchange phase is not involved (no key is generated).

Question76: An SRLB is a set of user-specified local labels reserved for SR-MPLS. These labels are locally configured and have only local significance. Therefore, they are not advertised through the IGP.

Question77: A VGMP packet is encapsulated with a UDP header and a VGMP header. By default, a VGMP packet uses UDP port _____.

Question78: Before connecting an SSH client to an SSH server in public key authentication mode, a client needs to create a key pair. Which of the following commands is used to create a DSS key pair on the client using Git Bash?

Question79: What can be determined from the following figure?

Question80: Which of the following number sequences can be matched by the regular expression 100.s?

Question81: The following figure shows the inter-AS MPLS L3VPN Option C (Solution 2). ASBR-PE2 is connected to CE3 and runs eBGP.

To enable all CEs to communicate with each other, which of the following address families must peer relationships be enabled in the BGP process of ASBR-PE2?

Question82: The channelized sub-interface and FlexE technologies both can be used to implement network slicing, but the application scenarios of the two technologies are slightly different. Which of the following statements about the two technologies are correct?

Question83: In the figure, SR-MPLS is enabled on R1, R2, and R3. The SRGB (Segment Routing Global Block) range on R3 is from 20000 to 21000, and the prefix SID index configured on the loopback1 interface of R3 is 30.
In this case, the MPLS label corresponding to the loopback1 interface of R3 is _____.
(Enter an Arabic numeral without symbols.)

Question84: On a campus network, iMaster NCE-Campus is used to deploy two VNs (Virtual Networks): R&D VN and Marketing VN. Users in these two VNs belong to two separate security groups.
The campus network requires R&D personnel and sales personnel to communicate with each other. To meet this requirement, which of the following tasks does a network administrator need to perform?

Question85: iMaster NCE-Campus provides the terminal identification function to display the terminal type, operating system, and manufacturer information.